We're not quite there yet. I have a sophomore so we haven't discussed specific schools with the guidance counselor yet, but many of my friends with African American kids tell me that their guidance counselors seem to encourage them to aim "low". I know one kid, for example, whose guidance counselor really pushed community college, saying she'd never get into a 4 year school, and yet was accepted to every school she applied to. So, I do think that it's important that we, as parents of AA kids do our own research into options, and don't rely on the school to tell us where to apply.
Having said that, I think that my kid is the kind of kid that often does well at an HBCU, so I think it's likely that there will be HBCU's on his list. I also trust his counselor, who is one of the strongest professionals we've encountered in MCPS, and happens to be African American, so if she suggests we look at a specific HBCU, I'm sure we'll do so.